Visual impairment and all-cause mortality: a real-world retrospective cohort study.

ABSTRACT:

Background

VI (visual impairment) significantly impacts global public health, and there are few studies and inconsistent results on the impact of VI on mortality in Chinese adults. Our study aims to investigate the association between VI and the all-cause mortality risk in Chinese adults and to explore potential sex differences.

Methods

This retrospective cohort (from July 17, 2010 to September 30, 2021) utilized data from the Yinzhou Health Information System, involving 182,468 individuals with valid visual acuity (VA) examination records. We assessed VI, defined as a presenting VA of the better eye worse than 0.5, using two variables: a binary variable (non-VI vs. VI) and a categorical variable (non-VI: VA ≥ 0.5; mild VI: 0.3 ≤ VA < 0.5; moderate VI: 0.1 ≤ VA < 0.3; severe

SUBMITTER: Fu C 

PROVIDER: S-EPMC12657157 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature